package tolowercase;

import java.util.Scanner;
//将大写的单词转换为小写
public class ToLowerCase {
    public static String toLowerCase(String s) {
        String s1 = "";
        for (int i = 0; i < s.length(); i++) {
            char ch = s.charAt(i);
            if (ch >= 65 && ch <= 90) {
                ch = (char) (ch + 32);
            }
            s1 = s1 + ch;
        }
        return s1;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.nextLine();
        System.out.println(toLowerCase(s));
    }
}


